12 Days of Christmas
399
Abundant Numbers
610
Abundant Numbers (Long)
671
Arithmetic Numbers
651
Collatz
745
Divisors
844
Emojify
418
Fibonacci
626566935
Fizz Buzz
569
848
Foo Fizz Buzz Bar
715
ISBN
584
Niven Numbers
771
Niven Numbers (Long)
841
Pangram Grep
725701
Tongue-twisters
373
Vampire Numbers
69
π
56